To track some personally noteworthy events, observations and thoughts, letting them age and savor/regret them again a long time later.
Saturday, April 9, 2011
Earth's gravity field
A short video displaying the gravity field of our planet. I can imagine in the distant future, a Starship Enterprise would measure and analyze this as a matter of routine when visiting a new planet. Fascinating. My daughter emailed me about this. It was reported by the National Geographic.